JP3233121U - Sleepers for branching equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sleeper for a branching device capable of easily performing installation work while ensuring strength. SOLUTION: The railroad track is provided in a turnout section where a turnout is arranged, is made of prestressed concrete, has a height of 139 mm or more and 143 mm or less, and a lower surface width of 297 mm or more and 303 mm or less. The turnout section has a first section in which a point portion and a lead portion of the turnout are arranged, and includes a first turnout sleeper 10 provided in the first section and having an upper surface width of 292 mm or more and 298 mm or less. Twenty-eight rod-shaped steel materials 40 are juxtaposed inside the sleepers for the first branching device so as to extend in the length direction orthogonal to the height direction and the width direction. [Selection diagram] Fig. 2

Description

The present disclosure relates to sleepers for branching devices.

Conventionally, a prestressed concrete sleeper is described in, for example, a method for manufacturing an elastic sleeper made of prestressed concrete proposed in Patent Document 1.

The method for manufacturing an elastic pillow made of prestressed concrete proposed in Patent Document 1 is to fill the molding space with concrete in a bottomed mold in which an elastic body accommodating space is provided above the molding space of the pillow. After that, the elastic body is accommodated in the accommodating space, and the elastic body is pressed against the concrete by a holding member to obtain a product in which the elastic body and the pillow are integrated.

Japanese Unexamined Patent Publication No. 8-281616

Among the conventional prestressed concrete sleepers as described in Patent Document 1, the railroad track provided in the turnout section where the turnout is arranged has, for example, a height of about 210 mm. In many cases, the width of the lower surface is about 270 mm. By providing such a structure, the conventional prestressed concrete sleepers for branching equipment secure the strength. On the other hand, such conventional prestressed concrete sleepers for branching devices may be difficult to install due to, for example, the need to secure a predetermined trackbed thickness.

Therefore, an object of the present disclosure is to provide sleepers for branching devices, which can be easily installed while ensuring strength.

In order to solve the above problems, the turnout sleepers according to the present disclosure are provided in the turnout section of the railway line where the turnouts are arranged, are made of prestressed concrete, and have a height of 139 mm or more and 143 mm or less. The width of the lower surface is 297 mm or more and 303 mm or less.

According to the above configuration, since the height is smaller than that of the conventional sleepers for branching devices, the installation work can be easily performed. Further, since it is made of prestressed concrete and has a large cross-sectional width as compared with conventional sleepers for branching devices, strength can be ensured even if the height is reduced as described above.

According to the present disclosure, it is possible to provide sleepers for branching devices that can be easily installed while ensuring strength.

It is a schematic plan view which shows the turnout section of the railroad track provided with the turnout sleeper which concerns on one aspect of this disclosure. It is a schematic cross-sectional view along the height direction of the 1st branch sleeper provided in the sleeper for branch according to one aspect of the present disclosure. It is a schematic cross-sectional view along the height direction of the 2nd branch sleeper provided in the sleeper for branch according to one aspect of the present disclosure. It is a schematic cross-sectional view along the height direction of the 3rd branch sleeper provided in the sleeper for branch according to one aspect of the present disclosure. It is a schematic cross-sectional view along the height direction of the conventional sleeper for a branching device.

Hereinafter, sleepers for branching devices according to one aspect of the present disclosure will be described with reference to the drawings. The present disclosure is not limited by this aspect. Further, in the following, the same or corresponding elements are designated by the same reference numerals throughout all the figures, and the duplicated description thereof will be omitted.

(Switch section BI)
FIG. 1 is a schematic plan view showing a turnout section of a railroad track provided with sleepers for turnouts according to this aspect. As shown in FIG. 1, in this embodiment, the turnout section BI in which the turnout 100 is provided is the section BI ₁ (first section) in which the point portion 102 and the lead portion 104 of the turnout 100 are arranged. ), The section BI _{2 (second section) in which the motor unit 106 of the turnout 100 is arranged, and the section BI 3} (third section) in which the crossing unit 108 and the guard unit 110 of the turnout 100 are arranged. Have. In this embodiment, since the motor unit 106 is arranged in the point unit 102, the section BI ₂ constitutes a part of the section BI _1.

The motor unit 106 is provided with a motor that determines the traveling direction of the train by changing the tongue rail. Since the point portion 102, the lead portion 104, the crossing portion 108, and the guard portion 110 are known, the description thereof will be omitted here.

(Sleep sleepers for branching device 10)
As shown in FIG. 1, the branching device sleeper 5 according to this embodiment includes a branching device sleeper 10 (first branching device sleeper) provided in _{section BI 1 (first section).}

FIG. 2 is a schematic cross-sectional view taken along the height direction of the first sleeper for the branching device included in the sleeper for the branching device according to the present embodiment. The sleepers 10 for the branching device have a height H ₁ of 139 mm or more and 143 mm or less, a lower surface width WB ₁ of 297 mm or more and 303 mm or less, and an upper surface width WA ₁ of 292 mm or more and 298 mm or less. The length of the sleepers 10 for the branching device is, for example, about 2400 mm.

The sleeper for the branching device 10 has a design standard strength of 80 N / mm ² or more for prestressed concrete (hereinafter, may be simply referred to as “PC”).

Inside the branch sleeper 10, a total of 28 rod-shaped steel materials 40 are arranged side by side so as to extend in the length direction (depth direction in FIG. 2) of the branch sleeper 20 orthogonal to the height direction and the width direction. .. Specifically, six steel materials 40 are juxtaposed in the first stage 30 mm below the upper surface of the branch sleeper 10 (so-called "upper cover" is 30 mm), and 30 mm below the first stage. Six steel materials 40 are arranged side by side in the second stage, and eight steel materials 40 are arranged side by side in the third stage 25 mm below the second stage, and four stages 25 mm below the third stage. Eight steel materials 40 are arranged side by side in the eyes. The fourth step is 30 mm above the lower surface of the branch sleeper 10 (so-called "lower cover" is 30 mm).

In the first stage, the three steel materials 40 juxtaposed on one side in the width direction (hereinafter, may be referred to as "left side") from the _{center line CL 1 are spaced apart from each other by about 30 mm in the width direction.} It is laid out side by side. _{The center line CL 1} referred to here is a center line extending in the height direction from the center of the sleepers 10 for branching devices in the width direction. The second stage three steel 40 than the center line CL ₁ is arranged on the left side in, four steel 40 which is arranged on the left side of the center line CL ₁ in the third stage above and, the same applies to the four steel 40 than the center line CL ₁ is arranged on the left side in the fourth stage.

The steel materials 40 arranged on the leftmost side in each of the first to fourth stages are at the same position in the width direction. The distance between the perpendicular line drawn from the lower surface so as to intersect these four steel materials 40 and the lower left corner of the branch sleeper 10 is about 30 mm.

Of the four strips juxtaposed on the left side _{of the center line CL 1} in the third stage, the _{steel material 40 is arranged on the center line CL 1} side most, and in the fourth stage, the left side _{of the center line CL 1.} Of the four pieces arranged side by side in the above, the steel materials 40 arranged on the _{CL 1 side of the center line are at the same position with each other in the width direction.} The distance from these two steel materials 40 to the center line CL ₁ is about 30 mm.

The 28 steel materials 40 are arranged symmetrically inside the sleepers 10 for branching devices with the center line CL ₁ as the axis of symmetry. Therefore, the same description of the remaining 14 steel materials 40 juxtaposed on the right side of the center line CL _{1 will not be repeated here.}

A shoulder 50 is embedded in the center of the branch sleeper 10 in the width direction at the end in the length direction. The Pandrol fastening device including the shoulder 50 fastens the floorboard or tie plate to the sleepers 10 for the branching device. Instead of the shoulder 50, for example, a bolt may be used to fasten the floor board or the tie plate to the sleepers 10 for the branching device. When the floor plate or the tie plate is fastened to the branch sleeper 10 by using bolts in this way, the parallel mode of the 28 steel materials 40 described above may be appropriately changed.

(Sleep ties for branching device 20)
As shown in FIG. 1, the branching sleeper 5 according to this embodiment further includes a branching sleeper 20 (second branching sleeper) provided in the _{section BI 2 (second section).} The sleepers for branchers 20 are provided with a motor for determining the traveling direction of the train.

FIG. 3 is a schematic cross-sectional view taken along the height direction of the second branch sleeper included in the branch sleeper according to the present embodiment. The brancher sleeper 20 has a height H ₂ of 139 mm or more and 143 mm or less and a lower surface width WB ₂ of 297 mm or more and 303 mm or less, similarly to the brancher sleeper 10. On the other hand, unlike the above-mentioned sleeper for branching device 10, the sleeper for branching device 20 has a width WA _{2 on} the upper surface of 277 mm or more and 283 mm or less. The length of the sleepers for the branching device 20 is, for example, about 3300 mm.

Similar to the above-mentioned sleepers for branchers 10, the sleepers for branchers 20 have a PC design standard strength of 80 N / mm ² or more.

Inside the branch sleeper 20, a total of 28 rod-shaped steel materials 40 are arranged side by side so as to extend in the length direction of the branch sleeper 20 as in the branch sleeper 10. At the same height position as the sleepers for the branching device 10, the first, second, third and fourth steps are 6, 6, 8 and 8 like the sleepers for the branching device 10. Steel materials 40 (a total of 28 steel materials 40) are arranged side by side.

In the first stage, the _{three steel materials 40 juxtaposed on the left side of the center line CL 2} are juxtaposed at intervals of about 28 mm in the width direction. Three steel materials 40 juxtaposed on the left side of the center line CL ₂ in the second stage, four steel materials 40 juxtaposed on the left side _{of the center line CL 2 in the third stage, and} The same applies to the four steel materials 40 juxtaposed on the left side of the center line CL _{2 in the fourth stage.}

The steel materials 40 arranged on the leftmost side in each of the first to fourth stages are at the same position in the width direction. The distance between the vertical line drawn from the lower surface so as to intersect these four steel materials 40 and the lower left corner of the branch sleeper 20 is about 33.5 mm.

Steel 40 is disposed closest to the center line CL ₂ side among the four that the center line CL ₂ is arranged on the left side in the third stage described above, and the left side of the center line CL ₂ in the fourth stage Of the four pieces arranged side by side, the steel materials 40 arranged on the _{CL 2 side of the center line are at the same position in the width direction.} The distance from these two steel materials 40 to the center line CL ₂ is about 32.5 mm.

The 28 steel materials 40 arranged side by side inside the sleepers for the branching device 20 are arranged _{symmetrically with the center line CL 2} as the axis of symmetry, as in the case of the sleepers for the branching device 10. Therefore, the same description of the remaining 14 steel materials 40 juxtaposed on the right side of the center line CL _{2 will not be repeated here.}

Similar to the branch sleeper 10, a shoulder 50 is embedded in the center of the branch sleeper 20 in the width direction at the end in the length direction. Since the details of the shoulder 50 and the like are the same as those of the sleeper 10 for the branching device, the description thereof will not be repeated here.

(Sleep sleepers for branching device 30)
As shown in FIG. 1, the branching sleeper 5 according to this embodiment further includes a branching sleeper 30 (third branching sleeper) provided in _{section BI 3 (third section).}

FIG. 3 is a schematic cross-sectional view taken along the height direction of the third branch sleeper included in the branch sleeper according to the present embodiment. The brancher sleepers 30 have a height H ₃ of 139 mm or more and 143 mm or less and a lower surface width WB ₃ of 297 mm or more and 303 mm or less, similarly to the brancher sleepers 10 and 20. On the other hand, unlike the above-mentioned sleepers for branching devices 10 and 20, the sleepers for branching device 30 have an upper surface width WA ₃ of 287 mm or more and 293 mm or less. The length of the sleepers 30 for the branching device is, for example, about 3400 mm.

Unlike the above-mentioned sleepers for branching devices 10 and 20, the sleepers for branching device 30 have a PC design standard strength of 100 N / mm ² or more.

Inside the branching sleepers 30, a total of 28 rod-shaped steel materials 40 are arranged side by side so as to extend in the length direction of the branching sleepers 30, similarly to the branching sleepers 10 and 20. Specifically, six steel materials 40 are juxtaposed in the first stage, which is 35 mm below the upper surface of the branch sleeper 30 (so-called "upper cover" is 35 mm), and 25 mm below the first stage. Six steel materials 40 are arranged side by side in the second stage, and eight steel materials 40 are arranged side by side in the third stage 25 mm below the second stage, and four stages 25 mm below the third stage. Eight steel materials 40 are arranged side by side in the eyes. The fourth step is 30 mm above the lower surface of the branch sleeper 30 (so-called "lower cover" is 30 mm).

In the first stage, the _{three steel materials 40 juxtaposed on the left side of the center line CL 3} are juxtaposed at intervals of about 30 mm in the width direction. Three steel materials 40 juxtaposed on the left side in the second stage, four steel materials 40 juxtaposed on the left side _{of the center line CL 3 in the third stage, and a center in the fourth stage.} The same applies to the four steel materials 40 juxtaposed on the left side of the wire CL _3.

The steel materials 40 arranged on the leftmost side in each of the first to fourth stages are at the same position in the width direction. The distance between the perpendicular line drawn from the lower surface so as to intersect these four steel materials 40 and the lower left corner of the branch sleeper 30 is about 30 mm.

Of the four strips juxtaposed on the left side _{of the center line CL 3} in the third stage, the _{steel material 40 is arranged on the center line CL 3} side most, and in the fourth stage, the left side _{of the center line CL 3} Of the four pieces arranged side by side in the above, the steel materials 40 arranged on the _{CL 3 side of the center line are at the same position with each other in the width direction.} The distance from these two steel materials 40 to the center line CL ₃ is about 30 mm.

The 28 steel materials 40 arranged side by side inside the branching sleepers 30 are arranged _{symmetrically with the center line CL 3} as the axis of symmetry, as in the case of the branching sleepers 10 and 20. Therefore, the same description of the remaining 14 steel materials 40 juxtaposed on the right side of the center line CL _{3 will not be repeated here.}

Similar to the branching sleepers 10 and 20, the shoulder 50 is embedded in the center of the branching sleepers 30 in the width direction at the end in the length direction. Since the details of the shoulder 50 and the like are the same as those of the sleepers 10 and 20 for the branching device, the description thereof will not be repeated here.

(effect)
As described above, the sleepers 5 for the branching device according to this embodiment include the sleepers for the branching device 10 (sleepers for the first branching device) provided in the _{section BI 1 (first section) where the point portion 102 and the lead portion 104 are arranged. Brancher sleepers 20 (second branch sleepers) provided in section BI 2} (second section) where the motor unit 106 is arranged, _{and section BI 3} (third section) where the crossing unit 108 and guard unit 110 are arranged. The sleepers for the branching device 30 (sleepers for the third branching device) provided in the above are provided. Table 1 summarizes the configurations of the branch sleepers 10, 20, 30 and the conventional PC-made sleepers for branchers (see FIG. 5, hereinafter may be referred to as “conventional product 90”).

Here, as shown in FIG. 5, many of the conventional products 90 have, for example, a height H'about 210 mm and a lower surface width WB'about 270 mm. With such a structure, the conventional product 90 secures the strength, but the installation work may be difficult due to, for example, the need to secure a predetermined trackbed thickness. On the other hand, as shown in Table 1, branched dexterity sleepers 10, 20, 30 according to the present embodiment (in other words, the branch dexterity sleepers 5), the height _{H 1,} H 2, _{H 3,} respectively, 139 mm or more 143mm or less Since the height is smaller than that of the conventional product 90, the installation work can be easily performed. Further, the sleepers 10, 20, and 30 for the branching device according to this embodiment are made of a PC, and the widths of the lower surfaces WB ₁ , WB ₂ , and WB ₃ are larger than those of the conventional product 90, so that the cross-sectional width is large. Even if the heights H ₁ , H ₂ , and H ₃ are reduced as described above, the strength can be ensured. As a result, according to this aspect, it is possible to provide the sleepers 5 for the branching device, which can easily perform the installation work while ensuring the strength.

As shown in Table 1, the branching sleepers 10 according to this embodiment have a larger _{upper surface width WA 1 than the branching sleepers 20 and 30.} Than this, the branch dexterity sleepers 10 according to the present embodiment, it is possible to ensure more strength, the standard spacing of the center line CL ₁ between the branch dexterity sleepers 10, 10 adjacent (hereinafter simply referred to as "sleeper interval".) Can be made larger than the sleeper spacing of the conventional product 90 (for example, about 650 mm at maximum) (for example, about 750 mm at maximum). _{As a result, the number of installations in the section BI 1} in which the point portion 102 and the lead portion 104 are arranged can be reduced, so that it is possible to reduce the cost, for example. For example, the branching sleeper 30 arranged in the crossing portion 108 has a larger train load acting than the branching sleeper 10 arranged in the point portion 102 and the lead portion 104. Further, the sleeper 30 for the branching device arranged in the guard portion 110 has a gauge break line portion. For these reasons, it is difficult to increase the sleeper spacing of the adjacent branch sleepers 30 and 30 as in the case of the branch sleepers 10 and 10 described above. On the other hand, the sleepers 10 for the branching device arranged at the point portion 102 and the lead portion 104 do not need to consider the above reason, so that the sleeper spacing can be increased as described above.

_{As shown in Table 1, since the width WA 2 of} the upper surface of the sleeper 20 for the branching device according to this embodiment is 277 mm or more and 283 mm or less, it is about the same as the conventional product 90 while ensuring ease of installation work and strength. It can be provided _{in the section BI 2} where the motor unit 106 is arranged at intervals of sleepers.

_{As shown in Table 1, since the width WA 3 of} the upper surface of the sleeper 30 for the branching device according to this embodiment is 287 mm or more and 293 mm or less, it is about the same as the conventional product 90 while ensuring the ease and strength of the installation work. It can be provided _{in the section BI 3} where the crossing portion 108 and the guard portion 110 are arranged at intervals of sleepers.

(Modification example)
From the above description, many improvements and other aspects of one aspect of the present disclosure will be apparent to those skilled in the art. Therefore, the above description should be construed as an example only and is provided for the purpose of teaching those skilled in the art the best aspects of carrying out the present invention. The details of its structure and / or function can be substantially changed without departing from the spirit of the present invention.

_{In the above aspect, the width WA 1} of the upper surface of the branch sleeper 10 _{is 292 mm or more and 298 mm or less, the width WA 2} of the upper surface of the branch sleeper 20 is 277 mm or more and 283 mm or less, and _{the width WA 3} of the upper surface of the branch sleeper 30. The case where is 287 mm or more and 293 mm or less has been described. However, not limited to this case, the branch dexterity sleepers 10, 20 and 30, respectively, the height _{H 1, H 2, H 3} , respectively, or less than 139 mm 143 mm, the lower surface of the width _WB 1, WB ₂ If WB ₃ is 297 mm or more and 303 mm or less, respectively, the widths WA ₁ , WA ₂ , and WA ₃ of the upper surface can be appropriately adjusted within a range in which the installation work can be easily performed while ensuring the strength.

(summary)
In order to solve the above problems, the turnout sleepers according to one aspect of the present disclosure are provided in the turnout section of the railway line where the turnouts are arranged, are made of prestressed concrete, and have a height of 139 mm or more and 143 mm or less. The width of the lower surface is 297 mm or more and 303 mm or less.

According to the above configuration, since the height is smaller than that of the conventional sleepers for branching devices, the installation work can be easily performed. Further, since it is made of prestressed concrete, the cross-sectional width is larger than that of the conventional sleepers for branching devices, so that the strength can be ensured even if the height is reduced as described above. As a result, it is possible to provide sleepers for branching devices that can be easily installed while ensuring strength.

The turnout section has a first section in which a point portion and a lead portion of the turnout are arranged, and a sleeper for a first turnout provided in the first section and having an upper surface width of 292 mm or more and 298 mm or less. You may prepare.

According to the above configuration, the sleepers for the first branching device can secure more strength, so that the interval between the sleepers can be increased as compared with the conventional sleepers for the branching device made of prestressed concrete. As a result, the number of installations in the first section in which the point portion and the lead portion are arranged can be reduced, so that it is possible to reduce the cost, for example.

In the sleepers for the first branching device, 28 rod-shaped steel materials may be arranged side by side so as to extend in the length direction orthogonal to the height direction and the width direction.

According to the above configuration, the sleepers for the first branching device can secure more strength than the conventional sleepers for branching devices made of prestressed concrete.

The turnout section has a second section in which the motor portion of the turnout is arranged, and even if a second turnout sleeper provided in the second section and having a top surface width of 277 mm or more and 283 mm or less is provided. good.

According to the above configuration, it can be provided in the second section where the motor unit is arranged at the same sleeper interval as the conventional prestressed concrete branch sleeper while ensuring the ease and strength of the installation work. ..

In the sleepers for the second branching device, 28 rod-shaped steel materials may be arranged side by side so as to extend in the length direction orthogonal to the height direction and the width direction.

According to the above configuration, the sleepers for the second branching device can secure more strength than the conventional sleepers for the branching device made of prestressed concrete.

The turnout section has a third section in which a crossing portion and a guard portion of the turnout are arranged, and a sleeper for a third turnout provided in the third section and having an upper surface width of 287 mm or more and 293 mm or less. You may prepare.

According to the above configuration, while ensuring the ease and strength of the installation work, it is provided in the third section where the crossing portion and the guard portion are arranged at the same sleeper interval as the conventional prestressed concrete branch sleeper. be able to.

In the sleepers for the third branching device, 28 rod-shaped steel materials may be arranged side by side so as to extend in the length direction orthogonal to the height direction and the width direction.

According to the above configuration, the sleepers for the third branching device can secure more strength than the conventional sleepers for branching devices made of prestressed concrete.

5 Sleepers for branching device 10 Sleepers for branching device (sleepers for first branching device)
20 Sleepers for branching device (sleepers for second branching device)
30 Sleepers for branching device (sleepers for 3rd branching device)
40 Steel 50 Shoulder 100 Turnout 102 Point part 104 Lead part 106 Motor part 108 Crossing part 110 Guard part BI Turnout section BI ₁ section (1st section)
BI ₂ section (2nd section)
BI ₃ section (3rd section)
CL _{1 to} CL ₃ Center line L Railroad track

Claims (7)

It is installed in the turnout section of the railroad track where the turnout is placed.
Made of prestressed concrete,
The height is 139 mm or more and 143 mm or less,
A sleeper for a branching device having a lower surface width of 297 mm or more and 303 mm or less. The turnout section has a first section in which a point portion and a lead portion of the turnout are arranged.
The sleeper for a branching device according to claim 1, further comprising a sleeper for a first branching device having a width of 292 mm or more and 298 mm or less on the upper surface, which is provided in the first section. The sleeper for a branching device according to claim 2, wherein 28 rod-shaped steel materials are juxtaposed inside the sleeper for the first branching device so as to extend in the length direction orthogonal to the height direction and the width direction. The turnout section has a second section in which the motor portion of the turnout is arranged.
The sleeper for a branching device according to any one of claims 1 to 3, further comprising a sleeper for a second branching device having a width of 277 mm or more and 283 mm or less on the upper surface provided in the second section. The sleeper for a branching device according to claim 4, wherein 28 rod-shaped steel materials are juxtaposed inside the sleeper for the second branching device so as to extend in the length direction orthogonal to the height direction and the width direction. The turnout section has a third section in which the crossing part and the guard part of the turnout are arranged.
The sleeper for a branching device according to any one of claims 1 to 5, further comprising a sleeper for a third branching device having a width of 287 mm or more and 293 mm or less on the upper surface, which is provided in the third section. The sleeper for a branching device according to claim 6, wherein 28 rod-shaped steel materials are juxtaposed inside the sleeper for the third branching device so as to extend in the length direction orthogonal to the height direction and the width direction.

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